47252789 has 2 divisors, whose sum is σ = 47252790. Its totient is φ = 47252788.

The previous prime is 47252783. The next prime is 47252797. The reversal of 47252789 is 98725274.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33062500 + 14190289 = 5750^2 + 3767^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47252789 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47252783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23626394 + 23626395.

It is an arithmetic number, because the mean of its divisors is an integer number (23626395).

Almost surely, 2^47252789 is an apocalyptic number.

It is an amenable number.

47252789 is a deficient number, since it is larger than the sum of its proper divisors (1).

47252789 is an equidigital number, since it uses as much as digits as its factorization.

47252789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 282240, while the sum is 44.

The square root of 47252789 is about 6874.0664093388. The cubic root of 47252789 is about 361.5284525940.

The spelling of 47252789 in words is "forty-seven million, two hundred fifty-two thousand, seven hundred eighty-nine".